Ishida Kousuke(石田 浩祐)

Contact

Email: kousuke.ishida.a2_at_tohoku.ac.jp (Replace _at_ with @)
Phone: +81-22-215-2044

　　　　　　　　　　　　　　　　　　　　

Curriculum Vitae

March 1994 Born in Kanagawa, Japan
[Education]
March 2016 B.S., Department of Applied Physics, University of Tokyo
March 2018 M.S., Department of Advanced Material Science, University of Tokyo
March 2021 Ph.D.(Sci.), University of Tokyo (Supervisor: Prof. Takasada Shibauchi)
[Research Experience]
April 2021 JSPS Overseas Research Fellowships (Max Planck Institute for Chemical Physics of Solids, Host: Dr. Clifford Hicks and Prof. Andrew Mackenzie)
May 2023 Post-doctoral research scientist, Max Planck Institute for Chemical Physics of Solids (Host: Dr. Clifford Hicks and Prof. Andrew Mackenzie)
June 2023 Assistant Professor, Institute for Material Research, Tohoku University (Quantum Functional Materials Physics)

Main Focus

Emergent functions in magnet, uniaxial pressure tuning, unconventional superconductivity, quantum critical phenomena, exotic quantum matter in correlated systems etc...

Publications

[Original articles] (Last updated: July 31st, 2025)
[17] Yuta Mizukami, Ohei Tanaka, Kousuke Ishida, Asato Onishi, Yoichi Kageyama, Masaya Tsujii, Ryotaro Ohno, Noriaki Kimura, Takaya Mitsui, Shinji Kitao, Masayuki Kurokuzu, Makoto Seto, Shigeyuki Ishida, Akira Iyo, Hiroshi Eisaki, Kenichiro Hashimoto, and Takasada Shibauchi,
“Thermodynamic signatures of diagonal nematicity in RbFe2As2 superconductor”
PNAS Nexus 4, pgaf060 (2025). (arXiv:2108.13081.)
[16] Y. Kageyama, A. Onishi, C. Bareille, K. Ishida, Y. Mizukami, S. Ishida, H. Eisaki, K. Hashimoto, T. Taniuchi, H. Kontani, and T. Shibauchi,
"Coherence Length of Electronic Nematicity in Iron-Based Superconductors"
J. Phys. Soc. Jpn. 93, 103702 (2024). (arXiv:2406.12705.)
JPSJ Editors' choice
JPSJ News Comments: Electrons Emancipated from a Crystal Lattice to be Nematic.
[15] I. Vinograd*, S. M. Souliou*, A.-A. Haghighirad, T. Lacmann, Y. Caplan, M. Frachet, M. Merz, G. Garbarino, Y. Liu, S. Nakata, K. Ishida, H. M. L. Noad, M. Minola, B. Keimer, D. Orgad, C. W. Hicks, and M. Le Tacon, (*equal contribution)
"Using strain to uncover the interplay between two- and three-dimensional charge density waves in high-temperature superconducting YBa2Cu3Oy"
Nat. Commun. 15, 3277 (2024). (arXiv:2308.08395.)
[14] H. M. L. Noad, K. Ishida, Y.-S. Li, V. Stangier, N. Kikugawa, D.A. Sokolov, M. Nicklas, B. Kim, I.I. Mazin, M. Garst, J. Schmalian, A.P. Mackenzie, C.W. Hicks,
“Giant lattice softening at a Lifshitz transition in Sr2RuO4”,
Science 382, 447 (2023). (arXiv:2306.17835.)
[13] M. Culo, S. Licciardello, K. Ishida, K. Mukasa, J. Ayres, J. Buhot, Y.-T. Hsu, S. Imajo, M. W. Qiu, M. Saito, Y. Uezono, T. Otsuka, T. Watanabe, K. Kindo, T. Shibauchi, S. Kasahara, Y. Matsuda, and N. E. Hussey,
"Expanded Quantum Vortex Liquid Regimes in the Electron Nematic Superconductors FeSe1-xSx and FeSe1-xTex"
Nat. Commun. 14, 4150 (2023).
[12] K. Mukasa*, K. Ishida*†, S. Imajo, M. W. Qiu, M. Saito, K. Matsuura, Y. Sugimura, S. Liu, Y. Uezono, T. Otsuka, M. Culo, S. Kasahara, Y. Matsuda, N. E. Hussey, T. Watanabe, K. Kindo, and T. Shibauchi, (*equal contribution, †corresponding author)
"Enhanced superconducting pairing strength near a pure nematic quantum critical point"
Phys. Rev. X 13, 011032 (2023). (arXiv:2202.11657.)
[11] Vadim Grinenko, Rajib Sarkar, Shreenanda Ghosh, Debarchan Das, Zurab Guguchia, Hubertus Luetkens, Ilya Shipulin, Aline Ramires, Naoki Kikugawa, Yoshiteru Maeno, Kousuke Ishida, Clifford W. Hicks, and Hans-Henning Klauss,
"μSR measurements on Sr2RuO4 under 〈110〉 uniaxial stress"
Phys. Rev. B 107, 024508 (2023). (arXiv:2301.06810.)
[10] S. Nakata, P. Yang, M. E. Barber, K. Ishida, H.-H. Kim, M. Le Tacon, A. P. Mackenzie, M. Minola, C. W. Hicks, and B. Keimer,
"Normal-state charge transport in YBa2Cu3O6.67 under uniaxial stress"
npj Quantum Mater. 7, 118 (2022).
[9] Masaya Tsujii, Kousuke Ishida†, Shigeyuki Ishida, Yuta Mizukami, Akira Iyo, Hiroshi Eisaki, Takasada Shibauchi, (†corresponding author)
"Charge Transport in Ba1-xRbxFe2As2 Single Crystals"
J. Phys. Soc. Jpn. 91, 104706 (2022). (arXiv:2209.15526.)
JPSJ Editors' choice
JPSJ News Comments: Hidden Nematic Quantum Critical Point and Precursor to Mott Insulating State with 3d5 Electron Configuration in Iron-Based Superconductors.
[8] K. Ishida, Y. Onishi, M. Tsujii, K. Mukasa, M. Qiu, M. Saito, Y. Sugimura, K. Matsuura, Y. Mizukami, K. Hashimoto, and T. Shibauchi,
"Pure Nematic Quantum Critical Point Accompanied by a Superconducting Dome"
Proc. Natl. Acad. Sci. USA 119, e2110501119 (2022). (arXiv:2202.11674.)
[7] H. Murayama, K. Ishida, R. Kurihara, T. Ono, Y. Sato, Y. Kasahara, H. Watanabe, Y. Yanase, G. Cao, Y. Mizukami, T. Shibauchi, Y. Matsuda, and S. Kasahara,
"Bond Directional Anapole Order in a Spin-Orbit Coupled Mott Insulator Sr2(Ir1-xRhx)O4"
Phys. Rev. X 11, 011021 (2021). (arXiv:2008.06380.)
[6] K. Mukasa, K. Matsuura, M. Qiu, M. Saito, Y. Sugimura, K. Ishida, M. Otani, Y. Onishi, Y. Mizukami, K. Hashimoto, J. Gouchi, R. Kumai, Y. Uwatoko, and T. Shibauchi,
"High-Pressure Phase Diagrams of FeSe1-xTex: Correlation between Suppressed Nematicity and Enhanced Superconductivity"
Nat. Commun. 12, 381 (2021).
[5] S. Hosoi, T. Aoyama, K. Ishida, Y. Mizukami, K. Hashizume, S. Imaizumi, Y. Imai, K. Ohgushi, Y. Nambu, M. Kimata, S. Kimura, and T. Shibauchi,
"Dichotomy between orbital and magnetic nematic instabilities in BaFe2S3"
Phys. Rev. Research 2, 043293 (2020). (arXiv:2011.08600.)
[4] Kousuke Ishida, Suguru Hosoi, Yuki Teramoto, Tomohiro Usui, Yuta Mizukami, Kenji Itaka, Yuji Matsuda, Takao Watanabe, and Takasada Shibauchi,
"Divergent Nematic Susceptibility near the Pseudogap Critical Point in a Cuprate Superconductor"
J. Phys. Soc. Jpn. 89, 064707 (2020). (arXiv:1908.07167.)
JPSJ Editors' choice, JPSJ 2021 Highly Cited Article
JPSJ News Comments: Identifying the Pseudogap in Cuprates with a Nematic Phase.
[3] K. Ishida*, M. Tsujii*, S. Hosoi, Y. Mizukami, S. Ishida, A. Iyo, H. Eisaki, T. Wolf, K. Grube, H. v. Loehneysen, R. M. Fernandes, and T. Shibauchi, (*equal contribution)
"Novel Electronic Nematicity in Heavily Hole-Doped Iron Pnictide Superconductors"
Proc. Natl. Acad. Sci. USA 117, 6424-6429 (2020). (arXiv:1812.05267.)
[2] K. Matsuura, Y. Mizukami, Y. Arai, Y. Sugimura, N. Maejima, A. Machida, T. Watanuki, T. Fukuda, T. Yajima, Z. Hiroi, K. Y. Yip, Y. C. Chan, Q. Niu, S. Hosoi, K. Ishida, K. Mukasa, S. Kasahara, J.-G. Cheng, S. K. Goh, Y. Matsuda, Y. Uwatoko, and T. Shibauchi,
"Maximizing Tc by tuning nematicity and magnetism in FeSe1-xSx superconductors"
Nat. Commun. 8, 1143 (2017). (arXiv:1704.02057.)
[1] S. Hosoi, K. Matsuura, K. Ishida, H. Wang, Y. Mizukami, T. Watashige, S. Kasahara, Y. Matsuda, and T. Shibauchi,
"Nematic Quantum Critical Point without Magnetism in FeSe1-xSx Superconductors"
Proc. Natl. Acad. Sci. USA 113, 8139-8143 (2016). (arXiv:1604.00184.)

[Reviews]
[2] K. Ishida, and T. Shibauchi,
"Test of superconducting electron pairing mediated by quantum liquid crystal fluctuations"
Butsuri [in Japanese] 79(2), 73-78 (2024).
[1] K. Ishida, and T. Shibauchi,
"New Type of Critical Point in Cuprate High-Temperature Superconductors"
KotaiButsuri [in Japanese] 56(6), 291-299 (2021).